Primitive Archer

Main Discussion Area => Bows => Topic started by: Stickhead on June 11, 2007, 10:21:56 am

Title: Anybody heat-treat / bend ERC?
Post by: Stickhead on June 11, 2007, 10:21:56 am
Hi all,

I've been working with ERC lately, and loving it.  But before I do another trial and error adventure, I thought I'd ask. 

Does anybody have ERC advice for:  Bending in reflex?  Recurving the tips?  Steam or dry heat?  Heat treating the belly?

Thanks for any wisdom,

-Tom
Title: Re: Anybody heat-treat / bend ERC?
Post by: Pat B on June 11, 2007, 12:29:45 pm
Tom, I also am interested in the answer you get. I have plans for a short, bend through the handle, west coast style, sinew backed bow with recurved tips. ERC is my bow wood choice.    Pat
Title: Re: Anybody heat-treat / bend ERC?
Post by: sonny on June 11, 2007, 12:39:18 pm
sapwood seems to bend quite easily.
heartwood, not so much. I had trouble bending the tips on an ERC recurve that I broke a while back. boiled the tips for 45 minutes (each) - one bent ok, the other cracked on the belly when I put it in my jig.
still want to make a sinew backed ERC recurve but have considered splicing in recurves much like a composite [horn, wood, sinew] bow. that's halfway down my list of bows to make..  ;)

Title: Re: Anybody heat-treat / bend ERC?
Post by: Ryano on June 12, 2007, 10:15:05 am
Ive reflexed one piece with dry heat and it worked fine at the time but the bow eventually exploded many shots later, I'm not sure I would use dry heat on soft woods like erc again..... :P
Title: Re: Anybody heat-treat / bend ERC?
Post by: Marc St Louis on June 12, 2007, 02:45:30 pm
It's hard to dry heat bend the heartwood. Can be done but you really have to sock the heat to it.
Title: Re: Anybody heat-treat / bend ERC?
Post by: Pat B on June 12, 2007, 02:53:26 pm
Would a kerfed and spined recurve be more appropriate for ERC and similar woods?   Pat